I have no idea what i am doing

I just want shells on Facebook so I can get more limited edition hatchling eggs!

I. Am. Terrified.

I need something to train for. I don't do well with this exercise to lose and be fit. I need to exercise to prove something bigger. So I am considering registering for an Oly Tri at Kiawah Island on September 21. That's just under 15 weeks away. I want to do this, but I am terrified I am going to fail miserably. Somebody tell me what to do for once!!!